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All Patents in class D7/372
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
D3,457Apr. 27, 1869W.D. Leavitt, H. ShawDesign for a grinding-mill
D3,458Apr. 27, 1869W.D. Leavitt, H. ShawDesign for a grinding-mill
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